Hunter and the NBPA’s late general counsel, Gary Hall, failed to get proper approval in 2010, as directed by union bylaws.

A copy of the NBPA constitution and bylaws, obtained and quoted by Yahoo! Sports, states in Article V, Section I that “the appointment of an Executive Director, and the terms of his employment contract, must be approved by two-thirds (2/3) of the combined total of all Board of Player Representatives and Executive Committee members.”

The possible violation of the constitution raises questions about the legitimacy of Hunter's contract and his future as executive director, according to Yahoo! Sports.

The website reported that Hunter signed the contract at an NBPA executive committee meeting June 23, 2010, in Las Vegas, but he and Hall never brought the deal to a vote of the 30 team player reps for approval, multiple unidentified sources told Yahoo! Sports.

Hunter and an NBPA spokesperson had not returned phone or text messages to Yahoo! Sports by Thursday afternoon.